LTC2858IDD-1#TRPBF

Drivers, Receivers, Transceivers Overview

The LTC2858IDD-1#TRPBF is a low-power, full-duplex RS-485/RS-422 transceiver manufactured by Analog Devices Inc. It operates on a single 5V supply and supports maximum data rates of 20Mbps or 250kbps for low EMI applications. The device features a one-eighth unit load receiver input impedance, supporting up to 256 nodes per bus in C and I grades. It includes enhanced ESD protection rated at ±15kV (HBM) on interface pins without latchup. Key electrical parameters include a maximum shutdown current of 5µA (C/I grade), a receive mode supply current of 900µA maximum, and driver short-circuit current limits of ±250mA. The component is housed in a 10-lead DFN package.

Drivers, Receivers, Transceivers Feature Summary

• Full-duplex communication capability with independent transmit and receive channels
• Integrated thermal shutdown and current limiting to prevent damage during bus contention
• Guaranteed failsafe receiver operation ensuring high output state under floating or shorted input conditions
• Power-up and power-down glitch-free driver outputs to maintain signal integrity

Drivers, Receivers, Transceivers Applications

• Low power RS485/RS422 transceivers
• Level translator circuits
• Backplane transceivers

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix #TRPBF confirms tape and reel packaging rather than tube. Confirm the IDD designation matches the required industrial temperature range specifications. Ensure the -1 suffix aligns with the necessary 20Mbps data rate performance requirements for the target application design.

Drivers, Receivers, Transceivers Selection Notes

Select this component when full-duplex operation is required alongside low power consumption constraints. The 10-lead DFN package offers a compact footprint suitable for space-constrained designs. Consider the 20Mbps speed rating if higher throughput is needed compared to the slew-rate limited variants available in the same family.

Drivers, Receivers, Transceivers Part Context

This part belongs to the LTC2858 series of low power RS485/RS422 transceivers. It is distinguished from half-duplex models like the LTC2856 by its full-duplex architecture. The -1 suffix indicates the 20Mbps speed variant, while the IDD prefix specifies the industrial temperature grade and 10-lead DFN package type.

Drivers, Receivers, Transceivers Replacement Considerations

LTC2858IDD-1#PBF